How to make an object go around another circular objects?
You may use an Array Modifier with the constant offset enabled.
Add an Empty (it'll be your pivot point). Next select the object, enter Edit Mode and place it as fas from Empty as you like. Being in Object Mode apply transformations (Ctrl+A) and add an Array Modifier to the object. Check the Constant Offset and Object Offset checkboxes. Select Empty below the second one.


Now just rotate the Empty (in your case by 60 degrees).